Car-ventilator



(Nvn, Model.)

T. L. MERRILL. CAR VENTILATOR.

4l\Io.-516,, 058. Patented Mar. 6, 1894.`

Uivrrnn Steins PATENT union.

THOMAS L. MERRILL, OF OAKLAND, GALIFORNIA.

CAR-VENTILATOR.

SPECIFICATION forming part of Letters Patent No. 516,058, dated Miarch6, 1894-.. Application filed Octohei` 6, 1893. Serie-l No. 487,359. (Nomodel.)

T all whom, it may concern:

Be it known that I, THOMAS L. MERRILL, a citizen of the United States,residing in the city of Oakland, county of Alameda, State of California,have invented an Improvement in Oar-Ventilators; and I hereby declarethe following to be a full, clear, and exact description of the same.

My invention relates to that class of ventilators, especially adaptedfor cars and other moving vehicles, and in which a rotary fan, driven bythe exterior air currents', is employed, to exhaust the foul air fromthe car or vehicle.

My invention consists in a casing having a passage through its lowerportion from end to end, and an opening in the upper portion of itsinner side, exposed to or in communii cation with the interior of thecar, and a fan mounted in said casing, and exposed at its lower portionto the current of air which passes through the bottom passage of thecasing, whereby said fan is rotated, and the foul air from the interiorof the car is thereby sucked out or exhausted through the side openingof the casing and discharged by the fan through the bottom passage.

The object of my invention is to provide a simple and efiectiveautomatic device for withdrawing the foul air from cars and other movingvehicles.

Referring to the accompanying drawings for a more complete explanationof my invention,--Figure 1 is a perspective view of my ventilator. Fig.2 is a longitudinal section of same. Fig. 3 is a view showing itsapplication to the turret roof of a car. Fig. 4: shows its applicationto a Window sash. Fig. 5 shows its application on top of a car roof.

A is a casing, having in its lcwer portion, a passage o. extending fromend to end and opening at each end to the exterior air. Upon the side ofthe casing in its upper portion is an opening a' of any suitabledimensions, here shown as about one-half of the side.

B is a rotary fan mounted suitably in the casing. Its blades, as will beseen, are exposed fully to and play by the side opening a' and theyextend down into the bottom passage a and are thereby exposed to thecurrent of air which passes through said bottom passage.

This device is intended to be located in any suitable position on thecar or other vehicle, said position being such that its side opening a'shall be exposed to or in communication with the interior of the car,and its bottom passage shall be exposed to lthe outer air and lie in theplane of direction of travel, Whereby the current of air created by thesuction of the car shall pass frecly through said bottom passage. Asapplied to cars, I have herein shown it located in three differentpositions, in any one or more of which it may be used. Thus, in Fig. 3it is shown against the outer wall of the hood or turret roof at a pointbetween the ordinary transorns c. The side opening a' is exposed throughan opening in the hood wall, to the interior of the car, and thiscommunication may be properly guarded by a screen or grating c'. In Fig.4 I have shown it placed on the window-sill d' of the sash D, anopening, properly screened or guarded, being made through the sash railand in communication with the side opening of the casing. In thisposition it will ventilate the car or the particular berth or section towhich it is applied, without having to lift the sash at all. In Fig. 5 Ihave shown it applied directly to the top of the car roof E, in whichcase a hood a2 formed with or attached to the casing Aconnects its sideopening o' with an opening in the car roof. It will be seen, that inWhichever direction the car moves, the exterior air, in rushing throughthe bottom passage a, will rotate the fan, and this movement of the fanwill draw out the foul air from within the car through the side openingaf, into the casing, from which it will then be discharged by the fanthrough the bottom passage.

'ioo

suction fan or fans operated by the exterior air current, to exhaustthefoul air from the interior of a car, and I do not claim such broadly asmy invention, but

What I do claim as new, and desire to secure by Letters Patent, is-

1. A ventilator for cars and other moving vehicles consisting of acasing, having a passage in its lower portion extending through it fromend to end, with both ends open and having also an opening in the upperportion of one of its sides, and communicating with the car or vehicleinterior, and a rotary fan in said casing, the blades of which extenddown into the bottom passage and are exposed to the current of airpassing through said passage whereby said fan is rotated, substantiallyas herein described.

2. A ventilator for cars and other moving vehicles, consisting of acasing, having a pas- Sage in its iower portion extending through itfrom end to end, with both ends open and having also an opening in theupper portion of one of its sides and communicating With the car orvehicle interior, and a rotary fan in said casing, the blades of whichextend up beside and are exposed to the side opening of the casing, andalso extend down into the bottom passage, and are exposed to the currentof air passing through said passage whereby said fan is rotated,snbstantially as herein described.

In Witness whereof I have herennto set my hand.

THOMAS L. MERRILL. XVitnesses:

FRANcIs L. I-IoBsoN, GEo. W. Bzaooxs.

